Install bathtub over tile?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Xenomorph, Jul 30, 2006.

  1. Xenomorph

    Xenomorph New Member

    Messages:
    41
    Anyone know if it's ok to install a bathtub over a ceramic tile floor...by this I mean extend the tile underneath the bathtub skirt...or will this just cause the tiles to break when someone steps into the tub and the skirt bears down on the tile?

    thx
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    22,324
    Location:
    New England
    If the tile is properly installed, it should not matter.
  3. hj

    hj Moderator & Master Plumber Staff Member

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    27,263
    Location:
    Cave Creek, Arizona
    tub

    it is easier for the tiler and it eliminates the gap between the tile and tub which is always a potential leak source when the grout cracks or pulls away from the tub. Unless the tub is very poorly installed no damage to the tile will occur.
  4. Cass

    Cass Plumber

    Messages:
    5,980
    Location:
    Ohio
    It is O.K. If the tile goes all the way under the tub to the wall or the tub is set in mud to level it with the tile floor if the floor does not go all the way to the wall.

    If the tub is set on the floor and the tile only goes a few inches under the skirt the tub will not be level.
  5. Xenomorph

    Xenomorph New Member

    Messages:
    41
    thx for info guys
  6. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    We tiled up to an existing tub in one bathroom, used a sanded grout-color-matched caulk in the seam next to the tub. Provides some flexibility, so theoretically it won't crack and leak. In the all-new master bath we tiled right up to the walls everywhere.
  7. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,263
    Location:
    Cave Creek, Arizona
    If the tub is set on the floor and the tile only goes a few inches under the skirt the tub will not be level.[/quote]

    Most tubs have to be leveled anyway, regardless of what the floor looks like.
  8. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    2,736
    Location:
    Central Florida
    What's under the tile?

    The supporting subfloor is more important than the tile -- if it flexes too much, you might have grout (and tile) cracking with the weight of the water-filled tub.
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